On 4/5/2019 10:54 PM, Chris Green wrote:
> I run dnsmasq on a Raspberry Pi to provide DHCP and DNS services on my
> home network.  I often spend quite long periods away from home and I'd
> like to have a way of providing some sort of backup if the Raspberry
> Pi dies for any reason.
>
> Recently the Pi has died a couple of times so I set up a second Pi
> with the same dnsmasq configuration file but without it set to run
> from /etc/init.d so that I could ssh into my network and start it
> manually.  This worked OK when I had to use it recently but it does
> require that I notice something is wrong which I may not do when I'm
> away.
>
> Is there a straightforward way of having a secondary DHCP and DNS
> server on a LAN?
>

Thanks to Google:

https://www.reddit.com/r/pihole/comments/99xmei/two_piholes_with_dhcp_enabled_on_1_network_as/

https://github.com/jiasir/dnsmasq-ha

The above could help you getting up 'dhcp failover'.
For DNS you would need to use zone transfer.

--
John Doe

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